Producing Reliable Full-System Simulation Results: A Case Study of CMP with Very Large Caches

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dc.contributor.authorChang, Mu-Tien
dc.contributor.authorBhati, Ishwar
dc.contributor.authorStevens, Jim
dc.contributor.authorTschirhart, Paul
dc.contributor.authorEnns, Peter
dc.contributor.authorGerzhoy, Daniel
dc.contributor.authorChishti, Zeshan
dc.contributor.authorGreensky, James
dc.contributor.authorLu, Shih-Lien
dc.contributor.authorJacob, Bruce
dc.date.accessioned2012-06-15T13:57:12Z
dc.date.available2012-06-15T13:57:12Z
dc.date.issued2012-01-01
dc.description.abstractThe greater detail and improved realism of full-system architecture simulation makes it a valuable computer architecture design tool. However, its unique characteristics introduce new sources of simulation variability which could make the results of such simulations less reliable. Meanwhile, the demand for more levels of cache and larger caches has increased to improve the system power and performance. This paper presents techniques to produce reliable results in full-system simulation of CMP computer systems with large caches. Specifically, we propose the detailed emulation replay warmup technique to deal with cold or incompletely warmed up large caches. We also propose the region of interest synchronization technique to prevent simulating non-representative phase when running multi-program workloads. Furthermore, we quantify the variation reduction one can achieve when using processor affinity and checkpointing. Finally, we show that by applying all four of these simulation techniques, the simulation variability is limited to less than 1% and the simulation results are therefore more reliable.en_US
dc.description.sponsorshipOregon Microarchitecture Lab, Intel Corporationen_US
dc.identifier.urihttp://hdl.handle.net/1903/12500
dc.language.isoen_USen_US
dc.relation.isAvailableAtInstitute for Systems Researchen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.relation.ispartofseriesTR_2012-07
dc.subjectcomputer systemen_US
dc.subjectsimulationen_US
dc.titleProducing Reliable Full-System Simulation Results: A Case Study of CMP with Very Large Cachesen_US
dc.typeTechnical Reporten_US

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